CN201907319U

CN201907319U - Touch light-emitting blackboard triggered by human body micro electricity

Info

Publication number: CN201907319U
Application number: CN2010202787907U
Authority: CN
Inventors: 李泉溪; 银兵; 安吉宇; 王宁宁; 王丹丹
Original assignee: Henan University of Technology
Current assignee: Henan University of Technology
Priority date: 2010-07-27
Filing date: 2010-07-27
Publication date: 2011-07-27
Anticipated expiration: 2020-07-27

Abstract

The utility model relates to a touch light-emitting blackboard triggered by human body micro electricity, which consists of a touch light-emitting module, a full-screen erasing press button, a blackboard eraser and a conductive handwritten pen, which are electrically connected together, wherein the touch light-emitting module comprises a plurality of light emitting elements, and each light emitting element comprises a light emitting body and a corresponding control circuit; the light emitting body comprises a light emitting diode and a signal probe; the blackboard eraser is connected with a system +5V power supply; the light emitting body receives different types of signals, i.e. a human body micro electricity signal or a blackboard eraser signal from outside according to the signal probe; under the action of a signal identification circuit and a signal control circuit, the blackboard is on or off, so that the purpose of writing with the human body micro electricity is realized, and an erasing function by the blackboard eraser can be realized. The touch light-emitting blackboard comprises a plurality of identical modules, is convenient to maintain and has the advantages of simple structure and no dust pollution, time and physical strength are saved, and size can be changed.

Description

A kind of luminous blackboard of touch that utilizes the little electricity of human body to trigger

Affiliated technical field

The utility model relates to a kind of electronic touch display device that utilizes the little electricity of human body to trigger, and can be used to replace traditional blackboard for education and chalk, also can be used as the information display board of light than the dark place.

Background technology

Blackboard is that people use chalk a kind of instrument of written information thereon, utilizes blackboard to show the information that will transmit to spectators very intuitively.Although multimedia teaching has now obtained very big popularizing, still be unable to do without blackboard in teaching and other occasion, be that multimedia can't replace because on-the-spot writing on the blackboard brings people's convenience and randomness.Yet there are 3 disadvantages in existing blackboard, first: generally adopt chalk to write, can produce many dust when wiping after chalk is write, cause air pollution, and use the residual chalk dust of meeting on the chalk defensive position; Second: whole plate blackboard eraser removes wastes time and energy; The 3rd: under later light, normal blackboard writes that can to cause spectators to watch unclear.

Summary of the invention

For solve the dust pollution that causes after existing blackboard is write, full blackboard eraser removes wastes time and energy, problems such as content does not see on the blackboard under the half-light line, the utility model provides a kind of touch luminous electron blackboard that utilizes the little electricity of human body to trigger, this blackboard is easy to use, big I increases cuts, save time and muscle power, no dust pollution, and under the half-light line, also can use.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of luminous blackboard of touch that utilizes the little electricity of human body to trigger, it is characterized in that: it is made up of touch light emitting module (3), full frame button (4), blackboard brush (5) and the conduction writing pencil (6) wiped, touch light emitting module and be made up of the light emitting pixel of some, each pixel is electrically connected by illuminator, signal recognition circuit, signal control circuit to be formed.Described illuminator is made up of light emitting diode (2) and signal probe (1), and synchronous signal probe (1) top is higher than light emitting diode (2) top.A kind ofly utilize the luminous blackboard of touch (Fig. 2) that the little electricity of human body triggers to be electrically connected and to form by the touch light emitting module (3) of varying number, the full frame button (4), blackboard brush (5), conduction writing pencil (6) wiped, touching that light emitting module (3) writes with the blackboard brush erase feature is to be realized by the control to each light emitting pixel, and the full frame button (4) of wiping is control to whole touch light emitting modules (3).Each touches light emitting module is made up of the light emitting pixel of some, and each light emitting pixel is electrically connected by illuminator, signal recognition circuit, signal control circuit to be formed.Illuminator (Fig. 1) is made up of light emitting diode (2) and the signal probe (1) that is added on the light emitting diode.Signal probe (1) receives blackboard when writing human body micro voltage signal and blackboard brush signal when wiping.Signal probe (1) is sent into signal recognition circuit to the level signal that receives, and identifying and sending into signal is human body micro voltage signal or blackboard brush high level signal, and its signal identification is to realize by a voltage identification device.The signal that identifies is sent into signal control circuit respectively, and signal control circuit mainly is made up of the trigger of band high level set function.Illuminator is luminous finishes once writing of this pixel if human body micro voltage signal, signal control circuit are then controlled.If the blackboard brush signal then signal control circuit that this pixel is stopped is luminous, promptly realize erase feature to this pixel.The full frame button (4) of wiping is control to whole blackboard, adopts method for controlling power supply, only need press the full frame button (4) of wiping and restart the blackboard Circuits System if will realize full frame control, when each touch light emitting module (3) of outage back resets to the illuminator state that goes out.

The beneficial effects of the utility model are, and are easy to use, can not produce dust pollution, help environmental protection, and the blackboard size is easy to increase and cuts, and wipe blackboard and save time and muscle power, also can make spectators see information on the blackboard clearly under the half-light line.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is further specified.

Fig. 1 is the positive simple and easy schematic diagram of illuminator of the present utility model.

Fig. 2 is the Facad structure schematic diagram of first embodiment of the utility model.

Fig. 3 is a signal recognition circuit schematic diagram of the present utility model.

1. signal probes among the figure, 2. light emitting diode 3. touches light emitting module, the 4. full frame button of wiping, 5. blackboard brush, 6. conduction writing pencil, 7. level determiner, 8. channel to channel adapter, 9. human body signal output pin, 10. blackboard brush signal output pin.

The specific embodiment

For technological means, creation characteristic, the purpose of reaching and the effect that the utility model is realized is easy to be understood,, the utility model is further elaborated below in conjunction with concrete diagram.

In Fig. 1, signal probe (1) and light emitting diode (2) are formed illuminator, can be regarded as and draw a signal probe directly over diode, and signal probe receives the signal of extraneous input.The illuminator vertical view is preferably regular hexagon, and the illuminator size is by the resolution ratio decision of blackboard.

In embodiment illustrated in fig. 2, a kind ofly utilize the luminous blackboard of touch that the little electricity of human body triggers to electrically connect and form by the touch light emitting module (3) of some, the full frame button (4), blackboard brush (5), conduction writing pencil (6) wiped.Touch light emitting module (3) and be made up of the light emitting pixel of some, each light emitting pixel is electrically connected by illuminator, signal recognition circuit, signal control circuit to be formed.The full frame button (4) of wiping links to each other with whole blackboard power pack, and behind deenergization, all signal control circuits reset the illuminator change is gone out.Blackboard brush (5) links to each other with+5 volts of voltages, when being implemented in blackboard eraser and removing+5 volts information of voltage is passed to signal probe (1), and the profile of blackboard brush and material can design according to the concrete condition in the use.Conduction writing pencil (6) function is to realize transmitting human body signal to give signal probe (1), and it is for the in use more humane aid that increases with rationalizing of blackboard.This blackboard adopts very easy its size of realization of module package technique to increase and cuts, and illuminator adopts led designs, has extremely low power consumption, and also can make spectators see information on the blackboard clearly under the half-light line.

At signal recognition circuit schematic diagram shown in Figure 3, it is electrically connected by signal probe (1), level determiner (7), channel to channel adapter (8), signal control circuit, and signal control circuit mainly is made up of the trigger that the band high level resets.Signal probe (1) passes to reset function pin in level determiner (7) and the signal control circuit to signal.When the signal on the signal probe (1) was high level signal, the signal on the signal probe (1) directly passed to control circuit by blackboard brush signal output pin (10), and it is that illuminator goes out that control circuit is resetted.When signal is human body micro voltage signal, signal can not make control circuit reset, after level determiner (7) identifies signal on the signal probe (1) and is human body micro voltage signal, level determiner (7) control channel selector (8) is opened passage and is passed to subsequent conditioning circuit by signal, promptly export human body signal and pass to signal control circuit from human body signal output pin (9), signal control circuit control illuminator is luminous, and its principle is similar to the soft-touch control control that present people use.

Level determiner (7) can have two kinds of methods to realize, and the one, by voltage ratio, comparative result control channel selector (8) only allows the human body low voltage signal to the subsequent conditioning circuit transmission.The 2nd, by a NOR circuit, wherein fix one and be input as low level, have only when another is input as the human body low level, could act on the channel to channel adapter (8) of subsequent conditioning circuit and allow signal pass through.

Basic principle of the present utility model, principal character and advantage of the present utility model have more than been described.The utility model is not restricted to the described embodiments; the method of describing in the foregoing description and the specification that principle of the present utility model and employing just are described; do not breaking away under the utility model principle and the scope prerequisite; the utility model can also have various changes and modifications, and these changes and improvements all fall in claimed the utility model category.The claimed scope of the utility model is defined by appending claims and its equivalent.

Claims

1. one kind is utilized the little electric luminous blackboard of touch that triggers of human body, it is characterized in that: it is made up of touch light emitting module, full frame button, blackboard brush and the conduction writing pencil wiped, touch light emitting module and be made up of the light emitting pixel of some, each light emitting pixel is electrically connected by illuminator, signal recognition circuit, signal control circuit to be formed.

2. a kind of luminous blackboard of touch that utilizes the little electricity of human body to trigger according to claim 1 is characterized in that described illuminator is made up of light emitting diode and signal probe, and the synchronous signal probe tip is higher than LED top.